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Diffstat (limited to 'doc/thesis/figures/tikz/qam-modulator.tex')
| -rw-r--r-- | doc/thesis/figures/tikz/qam-modulator.tex | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/doc/thesis/figures/tikz/qam-modulator.tex b/doc/thesis/figures/tikz/qam-modulator.tex index a55ff29..7ebc2c5 100644 --- a/doc/thesis/figures/tikz/qam-modulator.tex +++ b/doc/thesis/figures/tikz/qam-modulator.tex @@ -77,51 +77,6 @@ \node[above left] at (si) {\(s_i(t)\)}; \node[below left] at (sq) {\(s_q(t)\)}; - % Draw digital signals - \begin{scope}[font = \ttfamily\footnotesize, text = blue!70!white] - \node[above = 1mm of M, xshift = 2mm] {\(\ldots 1100101\)}; - \node[above = 7mm of vmi, xshift = 3mm] - {\(\overbracket[.8pt]{\,11\ldots 00\,}^{\sqrt{M} \text{ bits}}\)}; - \end{scope} - - % Draw analog waveform - \begin{scope}[font = \ttfamily\tiny] - \coordinate (O) at ($(mi)+(-2mm,10.5mm)$); - - \node[left, red!70!white, anchor = east, text width = 8mm, align = right] - at ($(O) + (-2mm,0)$) {\(2^{\sqrt{M}}\) levels}; - - \foreach \y in {-3mm,0,3mm} { - \draw[gray, densely dotted] (O) ++(-2mm,\y) -- ++(22mm,0); - } - - \draw[thick, draw = red!70!white] (O) - -- ++(3mm,0) -- ++(0,-3mm) -- ++(3mm,0) -- ++(0,6mm) - -- ++(3mm,0) -- ++(0,-3mm) -- ++(3mm,0) -- ++(0,-3mm) - -- ++(3mm,0) -- ++(0,3mm) -- ++(3mm,0); - \end{scope} - - % Draw constellation diagram - \begin{scope} - \coordinate (O) at ($(S)+(-7mm,8mm)$); - \draw[gray, -latex] (O) ++(-2mm,0) -- ++(12mm,0) node[right] {\tiny \(\phi_i\)}; - \draw[gray, -latex] (O) ++(0,-2mm) -- ++(0,12mm) node[above] {\tiny \(\phi_q\)}; - - \node[ - circle, thick, - minimum size = 3pt, - inner sep = 0, outer sep = .8pt, - draw = gray, fill = red!50!white - ] (P) at ($(O)+(5mm, 4mm)$) {}; - - \node[gray, above right] at (P) {\tiny \(s\)}; - - \draw[gray, densely dotted] - (P) -- (P |- O) - (P) -- (P -| O); - \end{scope} - - % Background elements \begin{pgfonlayer}{background} \fill[left color = white, right color = blue!20, draw = white] |